pH drift.. again
I posted a while back about having to adjust my pH down more frequently than I expected (
thread here)
Mod edit: Please keep your posts about this issue in the same place so we have the history. Thanks, moderator linen
Having only a 5 months experience with my pool, I'm sorry if I'm complaining about something that isn't a real issue, but please humor me for a second.
My pH seems to drift from where I lower it (7.4-7.5) to 7.8 in about 2 days like clockwork. Given the readings below, does this seem normal? I basically have to add acid every time I add chlorine (I wait 30 mins in between the acid and cl or course!).
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BBB method
TA: 70-80 (pink/red appears in the test for more than 5 seconds at 70, but 80 is where it really changes over)
pH: range is 7.5 - 7.8 or 7.9 (depending how long I leave it)
CH: 250
FC: I like to keep this around 5 or 6
CYA: 40-50
DE filter with fiberclear
I decided after my last post to add borates. I used borox and in 3 sessions added enough to get the pool to 60ppm (or so I thought). The test strips seem to indicate I'm now at 80ppm, which was unexpected. I expected the borates to help keep my pH from drifting so quickly (along with following the advice from the last post about lowering my TA). But it seems like the pH drifts upward slightly faster now.
Can anyone suggest a possible solution? Am I expecting too much?